| 摘要 |
Thermoplastic molding compositions comprising
A) from 10 to 99.8% by weight of a thermoplastic polyamide,B) from 0.1 to 60% by weight of red phosphorus,C) from 0.05 to 5% by weight of a catalyst comprising copper and zinc and support material,D) from 0 to 40% by weight of an impact modifier,E) from 0 to 60% by weight of further additives,
where the total of the percentages by weight of A) to E) is 100%. |
| 主权项 |
1. A thermoplastic molding composition comprising
A) from 10 to 99.8% by weight of a thermoplastic polyamide, B) from 0.1 to 60% by weight of red phosphorus, C) from 0.05 to 5% by weight of a catalyst comprising a mixture of from 30 to 70% by weight of CuO and from 15 to 60% by weight of ZnO from 1 to 35% by weight of support material which comprises Al oxide, Si oxide, TiO2, MgO, or iron oxide, zirconium dioxide, aluminosilicates, clays, zeolites, diatomaceous earth, hydrotalcites, or fumed silica, or of a mixture thereof, and from 0 to 10% by weight of further promoters,
where the percentages by weight, based on the weight of C, do not exceed 100% , D) from 0 to 40% by weight of an impact modifier, E) from 0 to 60% by weight of further additives, where the total of the percentages by weight of A) to E) do not exceed 100%; wherein the catalyst is made by a process comprising: precipitating salts corresponding to CuO and ZnO on the support material, followed by drying and calcining. |
